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RESPONDENT
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Vadim Gavrilov
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SITE NAME
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Lower Kolyma region, Yakutia, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (095)423-26-13/(095)423-26-13 // // Novoyasenevski Prospekt, 352-3-12, Moscow, 117574, Russia
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PROJECT DETAILS |
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Start of survey:
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End
of survey: |
Team
size: |
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WEATHER
CONDITIONS
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Weather conditions: |
| Spring was early and warm. Snow cover melted before waders arrived. However, the weather changed for the worse on 10 June: the temperature was low and it rained almost every day apart from five days of better weather at the beginning of July.
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| Date of ice-break on
rivers: |
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| Date of final loss of
snow: |
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
average
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Breeding conditions:
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| Arctic Foxes were rare. Relatively high numbers of Long-tailed Skua were present, but not all were breeding: big flocks of non-breeders were observed in the tundra during the whole of June. Waders arrived three to four days earlier than usual, and many commenced breeding at densities higher than normal, e.g. Spotted Redshank, Common Snipe, Pintail Snipe, Red-necked Phalarope, Long-billed Dowitcher and Bar-tailed Godwit. The following species occurred at average densities: Pacific Golden Plover, Grey Plover, Pectoral Sandpiper, Ruff, Grey Phalarope, Sharp-tailed Sandpiper and Temminck's Stint. The main losses incurred by wader nests and broods were caused by bad weather and predators (particularly Long-tailed Skuas). Breeding success was lowest in small species such as Temminck's Stint, Red-necked Phalarope and Pectoral Sandpiper. Therefore, the combination of high densities of some breeding waders, coupled with low breeding success for other species resulted in an overall moderate breeding season.
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Rodent dynamics:
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| The abundance of lemmings was relatively high (the maximum number was expected to occur in 1991).
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Rodent species recorded:
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Summary
of fauna studies: |
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